The United States is under 250 years old, but some of its maximum archaeological sites are older than Vikings sailors, the Roman empire and the pyramids.

Others are more recent and the other cultures stand out than throughout the country, with complex buildings and eliminating pictograms.

Many of those puts are open to the public, so you can see the old story of yourself.

Prehistoric camels, mammoths and other giant people have traveled, which is now new, when it is greener and more humid.

While the weather warmed about 11,000 years ago, Lake Otero Water fell, revealing the digital footprints of humans who lived among those extinct animals. Some even to stick to a vague, providing a rare review of the habit of the old hunters.

“Where do they come from?” Feder said. “Not parachute to the new Mexico. They will have to come from another place, which means that there are still older places. ” Archaeologists have simply not discovered them yet.

While they can absorb white and homonymous sands, Pas’s footprints are prohibited lately.

In the 1970s, archaeologist James, Mr. Adovasio, caused controversy when he and his colleagues that the stone team and other artifacts discovered in southwest Pennsylvania belonged to humans who had lived in the region 16,000 years ago.

For decades, scientists have discovered evidence of human homes that seemed to have between 12,000 and 13,000 years, belonging to the Clovis culture. For a long time they would have been the first to cross the Bering land bridge. Humans who have arrived in North America before this organization are called before Clovis.

The excavation itself is exhibited in the History Center of Heinz, which allows you to see a search in person.

Cooper’s ferry is in the classic nose of the Perce nose, which the land administration office has in public property.

They also discovered a mastodon defense with what seemed to reduce the marks through a tool. Other scientists have returned to the site more recently, raising more bones and tools. They used a radiocarbon dating, which established the site as a pre-clavis.

“The stone machinery and on the site show that at 14,550 years, other people knew how to locate the game, the new water and the device to make machinery,” said Michael Waters, one of the researchers, in a press release in 2016 “. ” These other people were well suitable for this environment. “

Since it is underwater and personal property, it is not open to visitors.

Scientists examine coprolitos or fossilized peanut, to be informed more about long and fast animals diets. Mineralized tea can also reveal much more. In 2020, archaeologist Dennis Jenkins published an article on the coprolitos of an Oregon cave that is over 14,000 years old.

Located in the center of Oregon-South, the caves seem to be a piece of the puzzle that indicates how humans have the continent thousands of years ago.

Every time other people arrived at the Americas, Siberia crossed Beringia, an area of ​​land and sea between Russia and Canada and Alaska. It is now covered with water, however, once a land bridge that connects them.

The in Alaska with the oldest evidence of human housing is Swan Point, in the region of the central-east of the State. In addition to the 14,000 -year -old teams and homes, gigantic bones were discovered there.

Although Alaska can have a richness of archaeological evidence of the first Americans, it is also a difficult position to dig. “His excavation season is very close and expensive,” Feder said. Some require a helicopter to achieve, for example.

The researchers who examine the site began to realize that the artifacts discovered on the site belonged to other cultures. Clovis’s problems are larger than Folsom flutes, which were first discovered in another archaeological site of New Mexico.

For decades after Whiteman’s discovery, the idea of ​​the mavens that the other people of Clovis were the first to cross the Bering d’Aring land bridge about 13,000 years ago. It is believed that the estimates of the arrival of humans are now at least 15,000 years ago.

One of the reasons why the dates of the human profession in North America are so debatable is that very few old remains have been found. Among the oldest, there is a Sun river boy up, or Xaasaa Na ‘, in the middle of Alaska.

According to this research, humans would possibly succeed in Alaska about 20,000 years ago.

The artifacts that the equipment left implies that the site has been used and for many years and was an assembly point for trade. People have brought equipment and rocks at 800 miles away. The remains of deer, fish, frogs, caimanes, nuts, grapes and other foods have given archaeologists a review of their nutrition and daily life.

Pictograms can have a non -secular and practical meaning, but also capture a time when the teams gathered and mixed, according to the Utah Natural History Museum.

It is a complicated walk to succeed in pictograms (and the NPS warns that it can be dangerously hot in summer) but it is seeing in person, Feder said. “These are artistic geniuses,” he said about artists.

In the 1860s, the United States government forced 8,000 Navajo to move to Fort Sumner in New Mexico. Fatal adventure is known as the “long walk. ” Finally, they were able to return, their houses and their cultures were destroyed.

A white walk is the one that is open to the public without a Navajo or NPS Ranger guide.

The Mesa Verde National Park has a large number of homes, adding the Palais de Falaises. It has more than one hundred rooms and approximately two dozen kivas or ceremonial areas.

Feder said it was his favorite archaeological site he visited. “You don’t need to leave because you can’t be real,” he said.

At that time, he is booming with hunters, farmers and artisans. “It’s an agricultural civilization,” Feder said. “It is a position where raw fabrics arrive thousands kilometers away. ” The researchers also discovered articular wells, potentially discovered in human sacrifices.

Although Cahokia is open to the public, the portions are recently closed for renovations.

The population was also practical, discovering irrigation systems and structure techniques, such as thick walls and shaded spots, to help them in the warm and dry climate.

Feder said that the accommodation is quite accessible, with a short walk along a path to see it, visitors cannot enter the construction itself.